I spent a good part of today on tool maintenance. Greased the shafts of my rotary tools. tuned up the edges on the chisels. Had to redo the edge on 3 palm tools. They had some micro chips along the cutting edge. Happens when I try and take too deep a cut in the hard woods I use. I have had big chips and had to regrind a whole new edge. The higher Rockwell rated tools can be a bit brittle. Cleaned and gave every thing a light coat of oil. Rust is always a issue in our high humidity. I try and do a general fix and clean twice a year. should be good tell spring.